div[class^="box"]
{
    height: 100px;
    width: 100px;
}

div[class="box1"]
{
    border: 1px solid black;
}div[class="box2"]
{
    border: 1px dotted black;
}div[class="box3"]
{
    border: 1px dashed black;
}
div[class="box4"]
{
    border: 1px dotted black;
    
    border-top: 2px solid red;
    /* border-right: 1px dotted black;
    border-left: 1px dotted black;
    border-bottom: 1px dotted black; */

}
div[class="box5"]
{
    background: pink;
    border: 1px dotted black;
    border-radius: 50%;

}